2020 Hyundai Elantra Owner Complaints

The contact owns a 2020 Hyundai Elantra. While driving at an undisclosed speed, the vehicle suddenly shut off without warning. The contact referenced NHTSA Campaign Number: 21V301000 (Engine) as a potential cause for the failure; however, the VIN was not included in the recall. The contact stated that the vehicle shook violently with an abnormal electrical wire burning odor. The manufacturer was notified of the failure. The vehicle was taken to an authorized dealer, where it was diagnosed with an engine starter failure. The engine starter was replaced; however, the failure persisted. The failure mileage was 102,474.

NHTSA ID

11766673

Incident

Jul 1, 2026

Mileage

102,474 mi

The vehicle entered limp mode. The Hyundai dealer diagnosed a camshaft problem, said the repair would be covered, ordered the part, and began the work. After the engine was opened, the dealer noted sludge/varnish and denied coverage, claiming lack of maintenance. This VIN is included in safety recall 21V301 for improperly heat-treated piston oil rings on the 2.0L Nu MPI engine. Hyundai told NHTSA that chipped rings can scuff the cylinder bore, cause accelerated oil consumption, knocking, oil-pressure warning, connecting-rod bearing seizure, stall, and in limited cases fire. The published remedy is inspection of the cylinder bore and piston skirt, engine replacement if damage is found, and PNSS software, at no charge. Hyundai National Consumer Affairs Case #XXX. I sent a written demand that they complete Campaign 203 and not convert an open safety recall into a customer-pay job. On XXX, case manager Mohammad issued a letter denying only “limited warranty” coverage for lack of Owner’s Manual maintenance. That letter does not state whether the Campaign 203 bore/skirt inspection was done, does not state whether PNSS was installed, and does not decide the incomplete recall. Oil and filter were changed on a regular schedule by the owner’s family using the specified oil. A signed affidavit was provided. Hyundai’s warranty does not require dealer-only oil changes. The symptom of the recalled oil-consumption defect (varnish/sludge) is being used to refuse the recall remedy. The vehicle remains unrepaired. I have not authorized customer-pay work or disposal of parts. What I want NHTSA to do Record this as an incomplete recall remedy. Require Hyundai Motor America to complete Campaign 203 on VIN [XXX]: perform the official bore and piston-skirt inspection, replace the engine if abnormalities exist, install PNSS, and cover related camshaft/engine damage found when the engine was opened, at no charge. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11763344

Incident

Jul 1, 2026

2020 HYUNDAI [XXX], VIN: [XXX] Incident Description: On XXX I was pulling into a parking spot and had my foot firmly on the brake pedal. When I attempted to shift the vehicle into Park the engine suddenly revved up excessively. The vehicle then accelerated forward on its own and crashed into a building. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11763045

Incident

Sep 9, 2026

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving 25 MPH, there was an abnormal rattling sound coming from the engine, with the check engine warning light illuminated. The contact pulled over to the side of the road. The vehicle was restarted but unexpectedly stalled. The vehicle was taken to an independent mechanic and was diagnosed with camshaft failure. The vehicle was towed to the dealer and was diagnosed with engine failure caused by a misfire. The contact was informed that the engine needed to be repaired. The vehicle was not repaired. The vehicle was taken to another independent mechanic and was diagnosed with camshaft failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 46,691.

NHTSA ID

11761736

Incident

Aug 27, 2026

Mileage

46,961 mi

Transmission TCM/IVT had a service campaign recall #963 for TCM relearn / IVT replacement for premature transmission failure. Hyundai USA and dealership Big Star Hyundai of Friendswood, TX have made claims of the repair being done. Service records indicate there was no replacement, relearn or anything transmission related done with the vehicle and Hyundai USA has claimed on their end that their records show it was completed, but refuse to show or display records of completion, and have not maintained outreach to the dealership regarding maintenance records for this specific issue. Transmission has popped a P0867 code at 65,000 miles, just outside of it's warranty, and reflects the same codes listed for an issue regarding the TCM/IVT service campaign 963. The safety risk is the transmission giving way on a highway or some other location where it could potentially lead to an accident or stranding, that could lead to serious injury or death. This puts other vehicles on the road and passengers at high risk for an accident or incident. The problem has been reproduced by my husband, and confirmed with ECM readers. Independent service in Atascocita TX confirmed the check engine light indeed coincided with the P0867 code and that it has to do with the very same recall they have claimed to have supported and completed, which is once again not listed under any service completed on the vehicle. We are attempting to have this component looked at by the dealership, but they refuse to acknowledge the service campaign 963 and allow an inspection of no-charge. My husband has already observed with a endoscope, and observed the transmission fluid, and replaced it, and there was no obvious signs of an issue. There were no previous issues to the vehicle, and no previous lights. After the light for the code came onto the dashboard, the transmission has now struggled to maintain steady fluid transitioning between gears, and has maintained a sluggish and resistance feeling.

NHTSA ID

11760645

Incident

Mar 20, 2026

The high beam lights don’t work. Doesn’t make changes to high. Relay, bulbs and breakers appear to be ok.

NHTSA ID

11759215

Incident

Jan 1, 2024

My 2020 Hyundai Elantra SEL experienced a total transmission/IVT failure at 81,185 miles. I paid $4,804.14 out of pocket to have the vehicle repaired at a certified Hyundai dealership, Dick Smith Hyundai Genesis of Greenville, now known as Hyundai of Greenville. The transmission was replaced with a new replacement unit. The replacement transmission has now suffered a second total failure at 117,922 miles, meaning the vehicle has experienced two total transmission failures before reaching 120,000 miles. The repeated failure of the IVT system is extremely concerning, particularly because the first replacement was performed by an authorized Hyundai dealership and the replacement unit failed after approximately 36,700 miles. I am requesting that this repeated transmission failure be documented and investigated. I also believe Hyundai should review the vehicle’s transmission history and consider the possibility of a systemic defect or premature failure involving the IVT system. I have already contacted Hyundai Customer Care regarding a Prior Repair Goodwill Reimbursement request for the $4,804.14 I previously paid out of pocket. Hyundai Customer Care case #43147944 was denied based on the vehicle being outside the factory warranty, although Hyundai directed me to the dealership for possible goodwill consideration. I am requesting full retroactive reimbursement of the $4,804.14 I paid for the first transmission replacement. I can provide the original repair invoice, service records, diagnosis, and documentation of the subsequent transmission failure upon request.

NHTSA ID

11758271

Incident

Jan 26, 2024

Steering wheel has been making whining noises when turning. Previously replaced worm shaft on steering while under warranty due to malfunction when first purchased. Issue has resurfaced but no longer covered under warranty. Dealer quoted nearly $800.00 to replace worm shaft.

NHTSA ID

11758002

Incident

Mar 14, 2026

Logic board failure part number 99211-F2000 leading to inoperable lane keeping assist and forward collision avoidance.

NHTSA ID

11757608

Incident

Aug 17, 2026

At 105,000 MI. My car stalled out and the engine stopped. It needs a new cam shaft, timing chain set, cam phaser and timing cover. We also had to replace the Variable valve timing solenoids as the metal melted.

NHTSA ID

11755778

Incident

Aug 4, 2026

"I was not notified of Campaign 974 and later experienced engine problems/failure. I am requesting review of whether the campaign was completed and whether the failure is related to the condition the campaign was intended to detect. My engine failed while pulling up to a house, stopping, then preparing to move again the car stalled, car stalled, car would not start for several times tried, then started was able to drive for about 10 miles then stalled again and would not start, car has been intermittently working, car has recent and regular oil changes on time with correct oil and still failed now there is metal in the oil per the mechanics there is knocking sort of like ticking sounds - the car left me stranded due to the engine intermittently working and not working to start the car - the car will attempt to start then turn right off immediately after starting the car and sometimes not turn over the car also had been jumping when in stopped positions as soon as attempt to give gas ever so slightly

NHTSA ID

11753202

Incident

Jul 24, 2026

I have a 2020 Hyundai Elantra Limited that was purchased new in December of 2020, has 17,764 miles, and no damage. At the end of May/early June of 2026, the car gave warning messages for the following: check forward collision avoidance assist system, check lane keep assist system, and check high beam assist system. The car was inspected by the dealership, from which it was purchased, on June 29, 2026. The technician report says error codes C1604 and C1606 were found and that the car required replacement of the front camera system at the cost of $1991.49. Front camera failure negates the ability to use the advanced safety features of this car. These features are so important to alert and, more importantly, assist the driver avoid accidents and improve all motorists safety. I have read numerous complaints depicting the same problem with this front camera system. Hyundai issued TSB 20-BE-006H due to multiple problems just like the one that happened to me. I have corresponded with Hyundai about this situation and my concerns on why a car with this few miles and no damage had a failure of this magnitude. They are unwilling to assist due to the warranty expiring 6 months ago. For components this important to the safety of all drivers, I would like to see a recall established to hold Hyundai accountable for faulty components. Safety should not be limited by a warranty and last longer than 5 1/2 years. Than you for your consideration.

NHTSA ID

11748184

Incident

Jun 1, 2026

A few weeks ago, I was driving home on a 3-Lane local state route here in NJ from a family outing on a rainy dark evening when a large portion of the body paint from the hood flaked / peeled off and somehow got stuck under the drivers side windshield wiper as they were on during the rain at highway speed. It was a large enough piece (at least 3" wide) , to not only get stuck under the wiper, but create a serious issue for me to see out the windshield where the wiper wouldn't clear my vision out of the windshield. I managed somehow to safely pull to the side of the road and get out to inspect what it was.. I was able to remove the large piece of peeling paint from under the wiper but it did ruin the edge of the wiper blade which made for a treacherous drive home and I had to replace the wiper at a later date. The paint is peeling from all over my car (Hood, Pillars, Roof) and I've done my best to get all the loose pieces off but I'm afraid to drive it anywhere with the thought more paint will peel off with the wind & get carried to someone else driving behind me. My Hyundai Elantra is a 2020 and has only 48,526 miles currently. I contacted my local Hyundai dealer who advised me I am "Out of warranty for paint coverage" and suggested I further open a case with Hyundai Corporate, which I did, and was assigned a case manager who requested I take it back to my local Hyundai dealer in Avenel, NJ (Sansone) and have a service advisor/technician take pictures and submit them to Warranty Services for a "goodwill repair". Hyundai came back with a "DECLINED" status from it being "Out of warranty caused by the time in service and mileage of the vehicle" and "no goodwill assistance is being offered at this time". The estimate from Hyundai claimed it would cost approx $6,500 to have the car repainted according to the service printout. The dealership and Hyundai are both aware of many, many vehicles that entire pieces of paint are just peeling / falling off several colored cars.

NHTSA ID

11746043

Incident

May 20, 2026

Reporting on 2020 Hyundai Elantra. I have owned since 2023, my car is currently at a Hyundai certified dealership for it's 3rd transmission in the three years I have owned it. All 3 transmission were inspected and then replaced by Hyundai certified technicians. The Safety aspect is the inability to get you vehicle off the highway.

NHTSA ID

11743760

Incident

Jun 7, 2026

Currently, there are 30,564 miles on my vehicle and I am the original owner of the vehicle since early 2021. This is a continuous intermittent problem that can occur at any time when trying to accelerate the vehicle. The vehicle could be moving down the road and you go to accelerate and the RPM's drop dramatically, giving you no power. The same thing has happened when trying to accelerate from a stop. The vehicle would start to accelerate and then all of a sudden the RPM's drop, giving you no power. I have had the vehicle to the dealership for this problem and I am being told that they can't do anything about it because they can't duplicate it. If this happened when it was necessary for me to get out of the way of a vehicle, an accident could occur, resulting in sirius injury or death. Also, there were no warning lights or check engine light that came on at any time when the problem presented itself.

NHTSA ID

11742932

Incident

Jun 9, 2021

Around 9 p.m., I was driving home on the XXX highway at about 60 mph. The road was clear, with no obstacles ahead, and it was lightly drizzling in the [XXX] area. Suddenly, the car's emergency braking system activated, then returned to normal. Although it startled me, thankfully there were no cars behind me to avoid a collision. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11740572

Incident

Apr 19, 2026

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving, the vehicle unexpectedly stalled. The vehicle was able to restart. The check engine light illuminated. The vehicle was taken to an independent mechanic Camshaft sensor failure. The camshaft sensors were replaced; however, the issue persisted. The vehicle was then taken to the dealer where it was diagnosed with engine failure but the vehicle was not repaired. The manufacturer was notified of the issue. The contact associated the issue with NHTSA Campaign Number 21V301000 (Engine). The approximate failure mileage was 105,000.

NHTSA ID

11740154

Incident

May 1, 2026

Mileage

105,000 mi

This complaint documents a recurring automatic transmission failure resulting in three complete vehicle shutdowns during active operation — two at highway speed and one in an active turning lane. The most recent failure occurred within 15 minutes of the vehicle being released from an authorized Hyundai dealership in College Park, Maryland, whose general manager admitted in a recorded call that the vehicle was released knowing the transmission was unrepaired and unsafe. The first failure occurred in 2025 on a highway with no prior warning. The vehicle was towed to the dealership, where the transmission was confirmed defective and repaired under warranty. The second failure occurred in January 2026, again on a highway with no warning. The dealership held the vehicle from January through May 2026 — four months — with no updates despite multiple owner inquiries. In April 2026 the dealership confirmed the transmission had failed again and was seeking Hyundai corporate authorization for the warranty repair. On May 21, 2026 I was told the vehicle was ready and the transmission had been fully repaired under warranty. This was false. On [XXX], within 15 minutes of leaving the dealership, the transmission failed a third time, completely shutting the vehicle down in an active turning lane with no warning. The general manager at Hyundai College Park later admitted in a recorded call that the transmission was never repaired and the vehicle was released only to recover the dealership's rental car, with full knowledge it was unsafe. All three failures were confirmed by the authorized dealer. Component is available for inspection. NHTSA investigation and recall consideration requested. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11739852

Incident

May 22, 2026

I bought a 2020 Hyundai Elantra in 2024 with 67k miles on it. After driving 22k miles the check engine light went on and when it was brought in to get it checked the transmission went out. I did not buy a warranty so I understood it would not be covered. The issue I had was it was very hard to get information on the condition of the car that was sold to me. What I found out was that the transmission fluid was likley not changed ever and definetly not checked before the car was sold since the check engine light was not on and the engine sounded fine when I bought it. Which when I did meet with the service manager was informed of. The service manager noted that the IVT transmission has a long history of going out and is a bad design. He stated that most cars are not being made with it anymore and that this is well known problem. My biggest issue is that they knew this when it was sold and since the car was already over 60k when they got it should have at least checked the fluid or put in new fluid due to the history of transmission problems on the car. It is very likely this was not done to the likelihood the fluid was already bad and the transmission would have gone out so they wanted to pass it on to the customer. I know it is on me to know about a car when it is purchased but did not think of checking specifically on what type of transmission was in the car and now always will. I have had two Hyundai and both went over 200k without problem. To have one go 89k and go out was totally unexpected and there were no warnings except a check engine light. The service manager was nice but told me there was nothing that could be done.

NHTSA ID

11739559

Incident

May 5, 2026

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an unknown speed and at a stop, the vehicle lunged forward. The RPM increased and decreased without applying the accelerator pedal. The check engine light was illuminated. A mobile mechanic reset the codes but was unable to determine the failure. The vehicle was taken to an independent mechanic who referred him to the local dealer. The local dealer was contacted, who stated there was a transmission pressure sensor issue. which prevents the service from being performed under Hyundai Service Campaign 863 T5B Bulletin: 20-01-028H. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 76,000.

NHTSA ID

11738079

Incident

Apr 17, 2026

Mileage

76,000 mi

I am submitting this complaint to document ongoing brake related concerns on my 2020 Hyundai Elantra that may affect vehicle safety. Since April 2024, I have experienced repeated brake rotor warpage that causes vibration during braking, reduced braking consistency, and a noticeable change in stopping behavior. These symptoms raise concerns about braking performance and overall vehicle control. I reported the issue to Hyundai Motor America and followed their required warranty process, including an inspection at High Desert Hyundai. The dealership indicated the condition should be covered under warranty, but I was charged twice for what should have been a no cost warranty inspection. HMA later denied warranty coverage based on an undefined claim of “outside influence” without providing any criteria, explanation, or evidence supporting that conclusion. The denial prevented me from understanding the basis of their determination or how it applied to the brake condition. HMA then directed me into the BBB Auto Line program under case number HYU2605570 as the next step for disputing the decision. Throughout this process, Hyundai did not provide any additional information or documentation explaining the cause of the brake condition or addressing the safety concerns I raised. Because braking performance affects stopping distance and vehicle control, I am reporting this issue to NHTSA so the agency is aware of the repeated brake vibration and rotor warpage, the inconsistent braking behavior, and the lack of clarity from the manufacturer regarding the cause. I possess all invoices, communications, photographs, and documentation related to the inspections and interactions with the dealership, HMA, and BBB Auto Line, and I have maintained these records since April 2024. I also filed a complaint with the NHTSA for this same reason on February 4, 2025, complaint no. 11638352, for reference.

NHTSA ID

11735866

Incident

Feb 2, 2026

The Contact owns a 2020 HYUNDAI Elantra. The contact stated while operating the vehicle at an undisclosed speed, he noticed that his RPM were going back and forth while on cruise control, after removing cruise control the vehicle stayed the same. The vehicle was pulled over and restarted but the vehicle was hesitating to accelerate and noticed a issue with the gears not. The vehicle was towed to a independent mechanic but was not fully diagnosed due to the transmission driving forward when in neutral. The dealer was notified of the failure and a appointment was set for a later date. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 106,000.

NHTSA ID

11735846

Incident

Apr 29, 2026

Mileage

106,000 mi

The contact owns a 2020 Hyundai Elantra. The stated that the backup camera was inoperable. No warning lights were illuminated. The contact stated that failure was related to NHTSA Campaign Number: 24V879000 (Back Over Prevention). The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, who confirmed there was no recall. But no assistance was provided. The failure mileage was approximately 19,100.

NHTSA ID

11734908

Incident

Mar 19, 2026

Mileage

19,100 mi

Unknown and about 4 months ago my headlights stopped working one would go out I’d replace the bulb then the other goes out then a different bulb in my headlight would go out I’d replace it and it would go out again then the connectors were unresponsive then my height beams won’t engage leaving me with little to no light in order to operate my vehicle at night and oddly enough they would disengage while driving leaving me visually impaired while driving

NHTSA ID

11734191

Incident

Jan 2, 2026

My engine failed due to a known piston problem code P1327. The recall 203 was performed 7/1/22 which put in a sensor so the dealership said that Hyundai said they do not have to fix it because it is out of warranty at 141,000 miles and was manufactured in South Korea so they say it doesn't qualify for the extended warranty Recall 203 Dealer Best Practice Date: October 12, 2021 Subject: HMA Recall 203 – Nu 2.0L Atkinson Engine Inspection and Replacement - (TSB #21-01-054H-1) - Remedy Available v3 Updates To This Document Date • TSB# 21-01-054H-1 – The TSB supersedes TSB # 21-01-054H to revise the Parts and Warranty Information sections, specifically related to add engine and service kit part numbers and op codes for engine replacement. 10/12/21. My car is available for inspection. The sensor light came on on the highway when the engine was already out of oil which caused the failure. The car could have caught fire or stalled on the highway which is the safety issue. The vehicle was inspected by Tires Plus and got the P1327 code and also the Wallace Hyundai dealer in Ft. Pierce, FL which got same code.

NHTSA ID

11733944

Incident

Apr 2, 2026